Four great stones once stood on a remote Scottish headland - the Sisters of Skara. Legend has it they were raised by a grieving father, to guide his abducted daughters home. A curse was placed on anyone who laid the stones low: their family, too, would be scattered to the winds, never to find their way home. 1931. When businessman Charles Blackmore takes down the stones on the Scottish headland, he soon finds his fortune lost, his wife dead and his four daughters torn apart. They each cling to a ring they inherited from their mother. Almost a century later, Roz moves to London from Australia with one singular personal item - an old ring that used to belong to her mother. Everything changes when she discovers a painting of old standing stones. Hunting down the history of the artwork, Roz starts to piece together her family's story.